JP6178542B2 - Adhesives useful in vehicle window mounting that provide quick travel time - Google Patents

Description

(Claim of profit on filing date)
This application claims the benefit of the filing date of US Patent Application No. 61 / 140,241, filed December 23, 2008, which is hereby incorporated by reference for all purposes.

  The present invention relates to a composition comprising an isocyanate functional prepolymer useful as an adhesive useful in bonding glass to vehicles and buildings. In another embodiment, the present invention is a method of joining two or more substrates together utilizing such a composition, where such substrates include glass, buildings and vehicles. obtain. In another embodiment, the present invention is a method of replacing a window in a vehicle using the composition of the present invention.

  Various adhesive compositions are used to attach (bond) glass (windows) to buildings and vehicles (Rizk, US Pat. No. 4,780,520; Bhat, US Pat. No. 5,976,305). No .; Bhat, US Pat. No. 5,922,809; Hsieh et al., US Pat. No. 6,015,475; Zhou, US Pat. No. 6,709,539; Rosenberg et al., US Pat. No. 7,226,523 No .; Wu, US Pat. No. 6,512,033; Zhou, US Pat. No. 7,101,950; Zhou, US Pat. No. 7,361,292; Nakata et al., US Pat. No. 6,657,035 And Bosshard et al., Canadian Patent 2,564,992, all of which are incorporated herein by reference). In car factories, windows use computer-controlled processing that facilitates the use of robots and various high performance adhesives such as non-conductive adhesives and high modulus adhesives. Used for mounting. The speed of curing is not a major issue because new vehicles are not moved at large distances for several days after window installation. Conversely, when it is necessary to replace the window in the vehicle, the replacement is often performed at a location away from the vehicle by the wearer working. In this environment, cure speed is important because the vehicle owner wants to drive the vehicle as soon as possible after installing the window. Adhesives useful in replacing windows for vehicles that facilitate quick drive away time are known (Bhat, US Pat. No. 5,976,305; Zhou, US Pat. No. 6). 709, 539; and Rosenberg et al., US Pat. No. 7,226,523). The introduction of various high performance adhesive compositions used to install windows in automobile factories causes problems for replacement window wearers. First, adhesives that meet all of the various performance requirements are not available on the market. Secondly, it is difficult to formulate many high performance adhesive components to enable quick drive away. Therefore, replacement window wearers often have to stock a variety of adhesives so that they can match the nature of the original adhesive.

  What is needed is an adhesive for bonding glass to a structure, which can be formulated to exhibit a variety of high performance properties (eg, large modulus and non-conductivity), and a wide range When applied under various environmental conditions, it exhibits fast safe run time (fast strength development), does not require expensive ingredients, and causes drooling or stringing when applied It is a composition that is useful as a non-adhesive adhesive.

U.S. Pat. No. 4,780,520 US Pat. No. 5,976,305 US Pat. No. 5,922,809 US Pat. No. 6,015,475 US Pat. No. 6,709,539 US Pat. No. 7,226,523 US Pat. No. 6,512,033 US Pat. No. 7,101,950 US Pat. No. 7,361,292 US Pat. No. 6,657,035 Canadian Patent No. 2,564,992

In one embodiment, the present invention provides a) one or more isocyanate functional polyether-based prepolymers having an average polydispersity of less than about 2.5 as determined by gel permeation chromatography at a Mp of greater than 1000. Polymer; b) one or more plasticizers, preferably about 15 weight percent, in sufficient quantity that the composition can be pumped at a temperature of -10 ° C and applied to the substrate. One or more plasticizers in the following amounts; c) one or more plasticizers in a sufficient amount such that the composition exhibits a predetermined press flow viscosity, ie greater than about 8 grams / minute A composition comprising DIN EN1465, comprising: further filler; and d) one or more catalysts for the reaction of the isocyanate component with the isocyanate-reactive group. The high speed impact of at least about 1.6MPa in accordance with high-speed impact test is a clear composition at 30 minutes after application. Preferably, the adhesive exhibits a peak strength of about 1.6 MPa or higher and an energy absorption of about 2.5 J or higher in a high speed impact test at 4 m / s 30 minutes after application, more preferably the adhesive is Once fully cured, it exhibits a strength of at least 3 MPa in a quasi-static lap shear test at 10 mm / min according to DIN EN 1465. In preferred embodiments, the filler comprises one or more carbon blacks, one or more non-colored fillers, one or more calcium carbonates, one or more thixotropes, or combinations thereof. Including. In a preferred embodiment, one or more carbon black compositions are present in an amount such that the composition has a resistivity of at least 10 ¹⁰ Ω · cm. In another preferred embodiment, the combination of one or more fillers and one or more isocyanate functional polyester-based prepolymers exhibits a press flow viscosity of about 8 grams / minute or more. Present in sufficient quantity.

  In another embodiment, the present invention comprises contacting two or more substrates with a composition according to the present invention disposed along at least a portion of the region with which the substrate is in contact. This is a method of bonding substrates together.

  In yet another embodiment, the present invention provides: i) removing the window from the vehicle; ii) the composition according to the present invention adapted to replace the window or to hold the window to the vehicle. Applying to the flange of the vehicle; iii) contacting the flange and the replacement window of the vehicle with the disclosed composition disposed between the replacement window and the flange of the vehicle; and iv) A method of replacing a vehicle window comprising curing the adhesive.

The composition of the present invention is useful as an adhesive for bonding substrates together. A variety of substrates can be bonded together using the compositions of the present invention, such as plastic, glass, wood, ceramics, metal and coated substrates (eg, plastic with a wear resistant coating disposed on the surface, etc.) Etc.) can be joined together using the composition of the present invention. The composition of the present invention can be used to bond similar and different substrates together. The compositions of the present invention are particularly useful for bonding glass or plastic with a wear resistant coating disposed on other substrates (eg, vehicles and buildings). The compositions of the present invention are also useful in joining parts of modular components (eg, vehicle modular components) together. Glass or plastic with a wear resistant coating disposed on the surface can be bonded to the coated and uncoated portions of the vehicle. The compositions of the present invention are particularly useful in joining replacement windows to structures. Conveniently, the adhesive is pumpable, sag resistant, and joins the parts together at a temperature between about -10 ° C and about 80 ° C. Preferably, the composition exhibits a sag of an uncured sample of less than about 2 mm. This allows an adhesive prepared from the composition of the present invention to be applied at a wide variety of ambient temperatures. Heating the material is not necessary to apply the adhesive. Furthermore, the adhesive has a large initial, facilitating a fast run time of preferably 1 hour, more preferably 30 minutes, after application of the adhesive at the temperature described above. Reveal the combination of impact resistance and rapid strength development. In particular, windscreens installed under such conditions meet the Federal Motor Vehicle Safety Standard (FMVSS) 212. In some preferred embodiments, the composition of the present invention is non-conductive and exhibits a resistivity of at least 10 ¹⁰ Ω · cm. The compositions of the present invention preferably reveal a maximum load after 30 minutes at 23 ° C. of about 0.8 MPa or more in a high speed impact test according to the method described herein below, more preferably about 1 The maximum load after 30 minutes of 2 MPa or more, most preferably the maximum load after 30 minutes of about 1.6 MPa or more is clarified. The applicability of the composition with a hand gun can be evaluated with the aid of the press flow viscosity test described herein below. For example, according to this test, the composition exhibits a press flow viscosity of about 8 grams or more per minute, more preferably a press flow viscosity of about 12 grams or more per minute, most preferably 1 minute. A press flow viscosity of about 16 grams per unit or more is exhibited. In the press flow viscosity test, a Ballan type press flow measuring device with a nozzle diameter of 4 mm and a pressure of 4 bar is used.

  “One or more”, as used herein, means that at least one or more of the listed components can be used as disclosed. “Nominal”, when used in terms of functionality, means the theoretical functionality, generally this can be calculated from the stoichiometry of the components used. In general, the actual functionality will differ due to imperfections in the raw materials, incomplete conversion of reactants, and by-product formation. Polydispersity is expressed as polydispersity index PDI and means weight average molecular weight (Mw) divided by number average molecular weight (Mn). Weight average molecular weight and number average molecular weight are determined by gel permeation chromatography (also referred to as GPC or SEC). For the purposes of the present invention, both Mn and Mw are determined by evaluating only the peaks above Mp = 1000. Evaluation of chromatograms for Mn, Mw and PDI is performed by state-of-the-art GPC instrument software. In a preferred embodiment, an instrument obtained from Dionex with Chromeleon software can be used, with 1,000 to 150,000 by means of a duplicate PL gel Mixed D separation column and GPC standard THF as solvent. Separation in the molecular weight range is possible. The column is calibrated with 6 PSty calibration standards in the range between 1000 and 150'000. The use of RI detectors in combination with viscosity detectors obtained from Viscotek with Omnisec software facilitates both standard and intrinsic viscosity corrected evaluations for Mn, Mw and PDI (the latter Give the so-called universal molecular weight).

  One or more isocyanate functional polyether-based prepolymers are present in an amount sufficient to impart adhesive properties to the composition. Such prepolymers have an average isocyanate functionality that is sufficient to allow for the preparation of a crosslinked polyurethane when cured and not so great that the polymer is unstable. “Stability” in this context means that the prepolymer or an adhesive prepared from the prepolymer has a shelf life of at least 6 months at ambient temperature, provided that This is in that an adhesive prepared from a polymer or prepolymer does not reveal an increase in viscosity during such a period that prevents its application or use. Preferably, the prepolymer or an adhesive prepared from the prepolymer does not undergo a viscosity increase of greater than about 50 percent during the stated period. Prepolymers are prepared by reacting one or more polyisocyanates with one or more compounds that on average contain more than one isocyanate-reactive group per molecule. The prepolymer preferably has a free isocyanate content that facilitates acceptable strength after 60 minutes in an adhesive prepared from the prepolymer and the stability of the prepolymer. Preferably, the free isocyanate content is about 1.2 weight percent or more based on the weight of the prepolymer, more preferably about 1.4 weight percent or more, and most preferably about 1.6 weight percent or more. And preferably no more than about 2.2 weight percent, more preferably no more than about 2.0 weight percent, and even more preferably no more than about 1.8 weight percent. When greater than about 2.2 weight percent, an adhesive prepared from a prepolymer can reveal a lap shear strength after 60 minutes that is too low for the intended use. Below about 1.2 weight percent, the viscosity of the prepolymer becomes too high to handle and the working time becomes too short. As is well known to those skilled in the art, polydispersity is by definition greater than 1.0. The prepolymer preferably exhibits a polydispersity of about 2.5 or less, more preferably a polydispersity of about 2.3 or less, and most preferably a polydispersity of about 2.1 or less.

  Preferably, the prepolymer has a viscosity of about 200 Pa · s or less, more preferably about 150 Pa · s or less, and most preferably about 120 Pa · s or less. Preferably, the prepolymer has a viscosity of about 50 Pa · s or more. The viscosity of the adhesive can be adjusted by the filler, but the filler generally does not improve the green strength of the final adhesive. Below about 50 Pa · s, adhesives prepared from prepolymers may exhibit poor high-speed tensile strength. Above about 150 Pa · s, the prepolymer is unstable and can be difficult to pump. “Viscosity”, as used herein, is measured by a Brookfield viscometer model DV-E using RV spindle # 5 at a speed of 5 revolutions per second and a temperature of 23 ° C.

  Preferably, the polyisocyanates used in preparing the prepolymer include aliphatic polyisocyanates, alicyclic polyisocyanates, araliphatic polyisocyanates, heterocyclic polyisocyanates or aromatics. Group polyisocyanates, or mixtures thereof. Preferably, the polyisocyanate used has an average isocyanate functionality of at least about 2.0 and an equivalent weight of at least about 80. Preferably, the isocyanate functionality of the polyisocyanate is at least about 2.0, more preferably at least about 2.2, most preferably at least 2.4, and preferably at most about 4. 0, more preferably at most about 3.5, and most preferably at most about 3.0. Greater functionality can also be used, but this can cause excessive cross-linking, resulting in an adhesive that is too thick to be easily handled and applied, In addition, the cured adhesive may become too brittle. Preferably, the equivalent weight of the polyisocyanate is at least about 80, more preferably at least about 110, most preferably at least about 120, and preferably at most about 300, more preferably at most About 250, and most preferably about 200 at most.

  Examples of preferred polyisocyanates include the polyisocyanates disclosed by Wu, US Pat. No. 6,512,033 (Column 3, lines 3 to 49), which is incorporated herein by reference. included. More preferred isocyanates are aromatic isocyanates, alicyclic isocyanates and derivatives thereof. Preferably, the aromatic isocyanate has the isocyanate group bonded directly to the aromatic ring. Even more preferred polyisocyanates include diphenylmethane diisocyanate and its polymeric derivatives, isophorone diisocyanate, tetramethylxylene diisocyanate, 1,6-hexamethylene diisocyanate and its polymeric derivatives, bis (4- Isocyanatocyclohexyl) methane, and trimethylhexamethylene diisocyanate are included. The most preferred isocyanate is diphenylmethane diisocyanate.

The term “isocyanate-reactive compound” as used herein includes any organic compound having a nominal purpose of at least two isocyanate-reactive components. For the purposes of the present invention, the active hydrogen-containing component is notable for its position in the molecule, according to the Zerewinoff test described by Wohler, Journal of the American Chemical Society, 49, 3181 (1927). The component containing the hydrogen atom which shows activity is shown. Illustrative of such active hydrogen _{components, -COOH, -OH, -NH 2,} -NH -, - CONH 2, include -SH and -CONH-. Preferred active hydrogen-containing compounds include polyols, polyamines, polymercaptans and polyacids. More preferably, the isocyanate-reactive compound is a polyol, and even more preferably a polyether polyol.

  Preferably, polyols useful in the preparation of the prepolymer are disclosed in Wu US Pat. No. 6,512,033 (Column 4, lines 10-64), which is incorporated herein by reference. Polyols such as polyether polyols, polyester polyols, poly (alkylene carbonate) polyols, hydroxyl-containing polythioethers, and mixtures thereof. Preferred polyols are polyether polyols that contain one or more alkylene oxide units in the polyol backbone. Preferred alkylene oxide units are ethylene oxide, propylene oxide, butylene oxide and mixtures thereof. The alkylene oxide can contain linear alkylene units or branched alkylene units. Preferably, the polyol contains propylene oxide units, ethylene oxide units or mixtures thereof. In embodiments where a mixture of alkylene oxide units is contained in the polyol, the various units can be randomly arranged or can be arranged in blocks of the respective alkylene oxide. In one preferred embodiment, the polyol comprises propylene oxide chains along with ethylene oxide chains that cap the polyol. In a preferred embodiment, the polyol is a mixture of diol and triol. Preferably, the isocyanate-reactive compound has a functionality of at least about 1.8, more preferably at least about 1.9, most preferably at least about 1.95, and preferably at most about 4.0, more preferably at most about 3.5, and most preferably at most about 3.0. Preferably, the equivalent weight of the isocyanate-reactive compound is at least about 200, more preferably at least about 500, more preferably at least about 1,000, and preferably at most about 5,000. More preferably at most about 3,000, most preferably at most about 2,500.

  The amount of isocyanate-containing compound used to prepare the prepolymer is such that it provides the desired properties, ie, the appropriate free isocyanate content and viscosity as discussed hereinabove. Amount. Preferably, the isocyanate is in an amount of about 1.3 equivalents or more of isocyanate (NCO) per equivalent of active hydrogen, more preferably in an amount of about 1.4 equivalents or more of isocyanate, most preferably about 1 Used to prepare the prepolymer in an amount of isocyanate equal to or greater than 5 equivalents. Preferably, the polyisocyanate used to prepare the prepolymer is used in an amount of isocyanate of about 2.0 equivalents or less, more preferably in an amount of isocyanate of 1.8 equivalents or less, most Preferably it is used in an amount of isocyanate up to about 1.6 equivalents.

  In one preferred embodiment, the adhesive further comprises a prepolymer containing one or more organic polymers dispersed therein. Preferably, the organic polymer is included in the prepolymer by including a dispersed triol in which organic polymer particles are dispersed. Preferred dispersed triols are disclosed in Zhou U.S. Pat. No. 6,709,539 (column 4, line 13 to column 6, line 18), which is incorporated herein by reference. Preferably, the triol used to disperse the organic particles is a polyether triol, more preferably a polyoxyalkylene triol. Preferably, such polyoxyalkylene oxide triol comprises a polyoxypropylene chain with a polyoxyethylene end cap. Preferably, the triol used has a molecular weight of about 4,000 or more, more preferably about 5,000 or more. Preferably, such triols have a molecular weight of about 8,000 or less, more preferably about 7,000 or less. Preferably, the particles dispersed in the dispersed triol include a thermoplastic polymer, a rubber-modified thermoplastic polymer or polyurea dispersed in the triol. The polyurea preferably comprises the reaction product of a polyamine and a polyisocyanate. Preferably, such dispersed triol-based prepolymer is included in the adhesive in an amount of less than about 5 weight percent.

Ｘｉ＝接着剤混合物におけるすべてのプレポリマーのモル分率、ｗｉ＝接着剤混合物におけるすべてのプレポリマーの重量分率。 The prepolymer can be prepared by any suitable method, for example, by bulk polymerization, solution polymerization, and the like. The reaction to prepare the prepolymer is performed under anhydrous conditions, preferably under an inert atmosphere (eg, under a nitrogen atmosphere, etc.) and to prevent crosslinking of isocyanate groups due to moisture in the atmosphere. . This reaction is preferably carried out at a temperature between about 0 ° C. and about 150 ° C., more preferably about 25 ° C., until the residual isocyanate content determined by titration of the sample is very close to the desired theoretical value. Performed at a temperature between ˜90 ° C. “Isocyanate content” means the weight percentage of the isocyanate component relative to the total weight of the prepolymer. The reaction for preparing the prepolymer can be carried out in the presence of a urethane catalyst. Examples of such catalysts include stannous salts of carboxylic acids, such as stannous octoate, stannous oleate, stannous acetate, stannous laurate, and the like. Similarly, dialkyltin dicarboxylates such as dibutyltin dilaurate and dibutyltin diacetate are known in the art as urethane catalysts, as are tertiary amines and tin mercaptides. Preferably, the reaction for preparing the prepolymer is catalyzed by stannous octoate. The amount of catalyst used is generally between about 0.005 parts by weight to about 5 parts by weight of the catalyzed mixture, depending on the nature of the isocyanate. Preferably, the reaction is carried out by mixing with a plasticizer. The following procedure is used to prepare a prepolymer having the desired polydispersity. Preferably, a polyether diol having an effective functionality of at least 1.9 (preferably at least 1.95) and a polyether triol having an effective functionality of at least 2.8 (preferably at least 2.9), Reacted with an aromatic polyisocyanate having a functionality of at least 2.0. These polyether polyols can contain up to 30 percent ethylene oxide units. Preferred polyether diols have a molecular weight of about 1,000 to about 6,000 when calculated from the OH number, and preferred polyether triols are about 3,000 to about 9 when calculated from the OH number. Has a molecular weight of 1,000. Other less preferred isocyanate functional prepolymers with a PDI greater than 2.5 can be added in amounts such that the average polydispersity index PDI (Mw / Mn) of the prepolymer mixture is 2.5 or less. . The PDI of the polymer mixture can be calculated from the Mn and Mw data of the individual component (pre) polymers, as is well known to those skilled in the art. The relationship is given by the following formula:

Xi = mole fraction of all prepolymers in the adhesive mixture, wi = weight fraction of all prepolymers in the adhesive mixture.

  The prepolymer is present in the composition of the present invention in an amount sufficient to allow the adhesive to bond the substrates together. Preferably, the polyurethane prepolymer is present in an amount of about 10 weight percent or more based on the weight of the composition, more preferably in an amount of about 30 weight percent or more, and most preferably in an amount of about 50 weight percent or more. Exists. Preferably, the polyurethane prepolymer is present in an amount of no more than about 65 weight percent, more preferably no more than about 60 weight percent, and most preferably no more than about 55 weight percent, based on the weight of the composition. Exists.

  The polyurethane prepolymer useful in the present invention can further comprise a plasticizer. Plasticizers useful in prepolymers are common plasticizers useful in polyurethane adhesive applications and are well known to those skilled in the art and are hereinafter denoted as low polarity plasticizers. The plasticizer is present in an amount sufficient to disperse the prepolymer into the final adhesive composition. The plasticizer can be added to the adhesive either during the preparation of the prepolymer or during the compounding period of the adhesive composition. Preferably, the plasticizer is present at about 0 weight percent or more of the prepolymer formulation (prepolymer + plasticizer), more preferably at least about 1 weight percent, most preferably at least about 6 weight percent. . Preferably, the plasticizer is present at about 15 weight percent or less of the prepolymer formulation, more preferably at about 13 weight percent or less.

  The composition of the present invention includes ingredients for controlling the rheological, viscosity, pumpability and sag characteristics of the composition. Materials included in the composition for these purposes include one or more fillers, one or more isocyanate functional polyester-based prepolymers, or mixtures thereof. These materials are added in sufficient amounts such that the composition exhibits the desired properties of rheology, viscosity and sagging. Preferably, these components have a composition of about 8 grams / minute or more (more preferably about 12 grams / minute or more, most preferably about 16 grams / minute or more) to allow application with a manual dispensing gun. ) To show a press flow viscosity. In a preferred embodiment, a mixture of one or more fillers and one or more isocyanate functional polyester-based prepolymers is used in the composition.

  The composition includes one or more fillers. Fillers are added for a variety of reasons as described hereinabove, and one or more types of fillers can be utilized in the compositions of the present invention. Add fillers to strengthen the composition, to give the proper viscosity and rheology, and to balance the cost with the desired properties of the composition and each part of the composition Can do. A preferred class of fillers includes one or more carbon blacks, one or more clays, one or more non-colored fillers, one or more thixotropes, or combinations thereof. In a preferred embodiment, the filler comprises one or more carbon blacks and one or more clays.

A preferred group of fillers useful in the present invention are fillers that provide a balance between cost and viscosity to each part. Such filler is preferably a non-colored filler, in an amount sufficient to give the formulation an acceptable balance of viscosity and cost, and to achieve the desired properties of the composition. Used in sufficient quantity. Useful fillers for this purpose include talc, calcium carbonate and kaolin. Preferred non-colored fillers include calcium carbonate or kaolin. The calcium carbonate useful in the present invention is standard calcium carbonate. Such standard calcium carbonates are untreated, that is, they have not been modified by treatment with other chemicals such as organic acids or esters of organic acids. Kaolin, also known as kaolinite, contains a compound represented by the chemical formula of Al ₂ Si ₂ O ₅ (OH) ₄ , and most often exists as a plate-like hexagonal crystal of clay size. Preferably, the non-colored filler is present in an amount sufficient to make the rheology of the composition suitable to function as an adhesive that can be applied by a hand gun. Preferably, the uncolored filler is present in an amount greater than or equal to about 0 weight percent, even more preferably present in an amount greater than or equal to about 3 weight percent, and most preferably present in an amount greater than or equal to about 5 weight percent. Preferably, the uncolored filler is present in an amount up to about 32 weight percent, and most preferably in an amount up to about 25 weight percent. When calcium carbonate is a non-colored filler, the calcium carbonate is preferably uncoated. Calcium carbonate is preferably present in an amount of about 0 weight percent or more of the composition of the present invention, more preferably in an amount of about 15 weight percent or more, more preferably in an amount of about 20 weight percent or more. . Preferably, calcium carbonate is used in an amount up to about 35 percent by weight of the composition of the present invention, more preferably in an amount up to about 28 percent by weight.

The composition of the present invention may further comprise reinforcing fillers present to improve the strength and rheology of the composition. A preferred class of reinforcing fillers includes one or more forms of carbon black. The reinforcing filler is present in an amount sufficient to strengthen the composition and in an amount sufficient to improve the rheology of the composition. In automotive applications, non-conductive is generally understood to mean an impedance of the composition of at least 10 ¹⁰ Ω · cm. Preferably, the reinforcing filler is present in an amount such that each part of the composition is non-conductive. If there are too many specific reinforcing fillers (such as one or more forms of carbon black), the composition may become conductive. When carbon black is used as a reinforcing filler, the carbon black used can be standard carbon black. Standard carbon black is carbon black that is not subjected to a specific surface treatment or oxidation to render the carbon black non-conductive. One or more non-conductive carbon blacks can be used in combination with standard carbon blacks, but such inclusion can lead to unnecessary cost increases. The amount of standard carbon black in the composition is such that provides the desired color, viscosity, sag resistance and strength. If non-conductivity of the composition is desired, standard carbon black can be utilized at a level at which the composition is non-conductive. The reinforcing filler (such as one or more forms of carbon black) is preferably present in the composition in an amount of about 0 weight percent or more based on the weight of the composition, more preferably about 10 weight percent. It is present in the composition in the above amounts, and most preferably in the composition in an amount of about 14 weight percent or more. Reinforcing fillers (such as one or more forms of carbon black) are preferably present in the composition in an amount up to about 20 weight percent, more preferably about 18 weight percent, based on the weight of the composition. It is present in the composition in the following amounts, and most preferably in the composition in an amount of about 16 weight percent or less. If conductive carbon black is used, care must be taken to keep the concentration below about 18 weight percent throughout the composition in order to hinder the impedance of the composition and exceed 10 ¹⁰ Ω · cm. Compositions less than this amount are considered non-conductive. A variety of standard carbon blacks are well known in the art and include RAVEN ™ 790, RAVEN ™ 450, RAVEN ™ 500, RAVEN ™ 430, RAVEN ™ 420 and RAVEN. (Trademark) 410 carbon black (which is available from Columbian), as well as CSX (trademark) carbon black (which is available from Cabot), and PRINTEX (TM) 30 carbon black (which is Degussa) Available). Various non-conductive carbon blacks are well known in the art, and include RAVEN ™ 1040 and RAVEN ™ 1060 carbon blacks, which are available from Columbian.

  Another class of fillers useful in the composition are clays added for the purpose of improving the cost effectiveness, viscosity and non-conductive properties of the compositions of the present invention. Preferred clays useful in the present invention include kaolin, surface treated kaolin, calcined kaolin, aluminum silicate and surface treated anhydrous aluminum silicate. The clay can be used in any form that facilitates the formulation of a manually dispenseable adhesive. Preferably, the clay is mixed in the form of ground powder, spray-dried beads or finely ground particles. Clay can be used in an amount of about 0 weight percent or more of the composition of the present invention, more preferably in an amount of about 10 weight percent or more, and even more preferably in an amount of about 16 weight percent or more. Can be used in Preferably, the clay is used in an amount up to about 30 weight percent of the composition of the present invention, more preferably in an amount up to about 23 weight percent.

  The adhesive composition can further include a filler that functions as a thixotrope (rheological additive). A variety of such thixotropes are well known to those skilled in the art and include fumed silica and the like. Preferred fumed silica includes organically modified fumed silica. The thixotrope can be added to the composition in an amount sufficient to provide the desired rheological properties. Preferably, the thixotrope is present in an amount of about 0 weight percent or greater, preferably in an amount of about 0.5 weight percent or greater, based on the weight of the composition of the present invention. Preferably, the thixotrope used optionally is present in an amount of about 3 weight percent or less, more preferably in an amount of about 2 weight percent or less, based on the weight of the composition of the present invention.

The composition can further comprise one or more isocyanate functional prepolymers containing one or more polyester-based polyols that are solid at ambient temperature (about 23 ° C.). The polyester-based polyol has a melting point such that the prepolymer provides sufficient green strength to prevent the substrates from moving relative to each other due to gravity at ambient temperature. With respect to mounting the window on a vehicle or building, the polyester-based prepolymer prevents the window from slipping after mounting. Preferably, the polyester polyol has a melting point of about 40 ° C. or higher, even more preferably has a melting point of about 45 ° C. or higher, and most preferably has a melting point of about 50 ° C. or higher. Preferably, the polyester polyol exhibits a melting point of about 85 ° C. or less, even more preferably a melting point of about 70 ° C. or less, and most preferably a melting point of about 60 ° C. or less. Polyester-based isocyanate prepolymers can be prepared using one or more polyester polyols and preferably aromatic polyisocyanates. In order to facilitate pumpability, the polyester-based isocyanate prepolymer can be diluted with a plasticizer. The amount of polyester polyol in the prepolymer is an amount sufficient to support the pumpability of the composition of the present invention. Preferably, the polyester polyol is present in the polyester polyol-based isocyanate prepolymer in an amount of about 70 weight percent or more based on the weight of the prepolymer, more preferably in an amount of about 80 weight percent or more. Present in the polymer. Preferably, the polyester polyol is present in the polyester polyol-based isocyanate prepolymer in an amount of about 95 weight percent or less based on the weight of the prepolymer, and more preferably in an amount of about 90 weight percent or less. Present in the polymer. Preferably, the polyester polyol-based isocyanate prepolymer is present in the adhesive composition in an amount sufficient to support the required raw strength of the composition and the desired rheology. If the amount is too high, the adhesive composition cannot be applied with a hand gun at ambient temperature. Preferably, the polyester polyol-based isocyanate prepolymer is present in the adhesive composition in an amount of about 0 weight percent or more based on the weight of the adhesive composition, more preferably in an amount of about 1 weight percent or more. Present in the composition, most preferably present in the adhesive composition in an amount of about 2 weight percent or greater. Preferably, the polyester polyol-based isocyanate prepolymer is present in the adhesive composition in an amount of about 10 weight percent or less, even more preferably in the adhesive composition in an amount of about 5 weight percent or less, most preferably Present in the adhesive composition in an amount up to about 3 weight percent. The polyester polyol may be any polyester composition that meets the defined property requirements that is crystalline at ambient temperature and melts in the desired temperature range. Preferred polyester polyols are prepared from linear diacids and linear diols. One more preferred diacid is adipic acid. More preferred diols are _C2-6 diols, with butanediol, pentanediol and hexanediol being most preferred. Polyester-based polyisocyanate prepolymers can be prepared using the processes and isocyanates described hereinabove. Preferred polyester polyols are available from Creanova under the trade name DYNACOL and the names 7381, 7360 and 7330, with 7381 being most preferred.

  The composition of the present invention may further comprise a polyfunctional isocyanate for the purpose of improving the modulus of the composition in the cured form. “Multifunctional” when used in connection with an isocyanate refers to an isocyanate having a functionality of 3 or more. The polyisocyanate may be any monomeric, oligomeric or polymeric isocyanate having a nominal functionality of about 3 or more. More preferably, the multifunctional isocyanate has a nominal functionality of about 3.2 or greater. Preferably, the multifunctional isocyanate has a nominal functionality of about 5 or less, even more preferably has a nominal functionality of about 4.5 or less, and most preferably about 4.2 or less. Has functionality. The polyfunctional isocyanate can be any isocyanate that is reactive with the isocyanate polyisocyanate prepolymer used in the composition and improves the modulus of the cured composition. Polyisocyanates can be monomeric; monomeric isocyanate trimer isocyanurates or biurets; oligomeric or polymeric, ie, the reaction product of several units of one or more monomeric isocyanates . Examples of preferred multifunctional isocyanates include trimers of hexamethylene diisocyanate, such as hexamethylene diisocyanate trimer available from Bayer under the trademark and name DESMODUR N3300, DESMODUR N-100. And polymeric isocyanates, such as polymer MDI (methylene diphenyl diisocyanate), such as polymer MDI sold under the PAPI trademark by The Dow Chemical Company, including PAPI20 polymeric isocyanate, etc. Is included. The polyfunctional isocyanate is present in an amount sufficient to provide the modulus of the cured composition of the present invention. If too much is used, the cure rate of the composition is unacceptably reduced. If too little is used, the desired modulus level cannot be achieved. The polyfunctional isocyanate is preferably present in an amount of about 0.5 weight percent or more based on the weight of the adhesive composition, more preferably in an amount of about 1.0 weight percent or more, most preferably Present in an amount greater than about 1.4 weight percent. The polyfunctional isocyanate is preferably present in an amount of no more than about 8 weight percent, more preferably no more than about 5 weight percent, and most preferably about 3 weight percent, based on the weight of the adhesive composition. Present in the following amounts.

  The adhesive also contains a catalyst that catalyzes the reaction of the isocyanate component with water or an active hydrogen-containing compound. Such compounds are well known in the art. The catalyst may be any catalyst known to those skilled in the art for the reaction of an isocyanate component with water or an active hydrogen-containing compound. Preferred catalysts include organotin compounds, metal alkanates and tertiary amines. Mixtures of various classes of catalysts can be used. Mixtures of tertiary amines and metal salts are preferred. Even more preferred are tertiary amines such as dimorpholinodiethyl ether and metal alkanates such as bismuth octoate. Among the useful catalysts are organotin compounds such as alkyl tin oxides, stannous alkanoates, dialkyl tin carboxylates and tin mercaptides. The stannous alkanoate includes stannous octoate. Alkyl tin oxide includes dialkyl tin oxide, such as dibutyl tin oxide and derivatives thereof. The organotin catalyst is preferably a dialkyltin dicarboxylate or a dialkyltin dimercaptide. Dialkyltin dicarboxylates with fewer total carbon atoms are preferred because they are more active catalysts in the compositions of the present invention. Preferred dialkyl dicarboxylates include 1,1-dimethyltin dilaurate, 1,1-dibutyltin diacetate and 1,1-dimethyldimaleate. Preferred metal alkanates include bismuth octoate or bismuth neodecanoate. The organotin catalyst or metal alkanate catalyst is present in an amount of about 60 parts or more per million parts based on the weight of the adhesive, more preferably 120 parts or more per million parts. The organotin catalyst or metal alkanoate catalyst is present in an amount of about 1.0 weight percent or less, more preferably 0.5 weight percent or less, most preferably 0, based on the weight of the adhesive. Present in an amount of 1 weight percent or less.

  Useful tertiary amine catalysts include dimorpholinodialkyl ether, di ((dialkylmorpholino) alkyl) ether, bis- (2-dimethylaminoethyl) ether, triethylenediamine, pentamethyldiethylenetriamine, N, N-dimethylcyclohexylamine. N, N-dimethylpiperazine 4-methoxyethylmorpholine, N-methylmorpholine, N-ethylmorpholine and mixtures thereof. One preferred dimorpholinodialkyl ether is dimorpholinodiethyl ether. One preferred di ((dialkylmorpholino) alkyl) ether is (di- (2- (3,5-dimethylmorpholino) ethyl) ether). Tertiary amines are preferably used in an amount of about 0.01 weight percent or more, more preferably about 0.05 weight percent or more, even more preferably based on the weight of the adhesive. Used in an amount of about 0.1 weight percent or more, most preferably used in an amount of about 0.2 weight percent or more, and used in an amount of about 2.0 weight percent or less, more preferably about 1. Used in amounts up to 75 weight percent, even more preferably used in amounts up to about 1.0 weight percent, and most preferably in amounts up to about 0.4 weight percent.

  The compositions of the present invention also preferably contain one or more plasticizers or solvents to modify the rheological properties to the desired consistency. Such materials must be water free, inert to isocyanate groups, and compatible with the prepolymer. Such materials can be added to the reaction mixture to prepare the prepolymer or can be added to the mixture to prepare the final adhesive composition, but preferably the prepolymer And added to the reaction mixture to prepare the adduct, so that such a mixture is made easier to mix and handle. Suitable plasticizers and solvents are well known in the art and include linear and branched alkyl phthalates such as diisononyl phthalate, dioctyl phthalate and dibutyl phthalate, “HB-40” Contains partially hydrogenated terpenes, trioctyl phosphate, alkyl sulfonate esters of phenol (Mesamol, Bayer), toluene-sulfamide, adipic acid ester, castor oil, xylene, 1-methyl-2-pyrrolidinone and toluene It is. The amount of plasticizer used is such an amount sufficient to provide the desired rheological properties and to disperse the ingredients in the composition of the present invention. Preferably, the plasticizer is present in the composition of the present invention in an amount of about 0 weight percent or more, more preferably in the composition of the present invention in an amount of about 1 weight percent or more, and most preferably about 6 weight percent. Present in the composition of the present invention in an amount greater than or equal to weight percent. The plasticizer is present in an amount up to about 15 weight percent, more preferably in an amount up to about 13 weight percent.

  The composition of the present invention can further comprise a stabilizer, in which case the stabilizer functions to protect the adhesive composition from moisture, thereby providing advancement in the adhesive formulation. And prevent premature crosslinking of the isocyanate in the adhesive formulation. Stabilizers known to those skilled in the art for moisture curable adhesives can preferably be used in the present invention. Included among such stabilizers are diethyl malonate, p-toluenesulfonic acid isocyanate, benzoyl chloride and orthoalkyl formate. Such stabilizers are preferably used in an amount of about 0.1 weight percent or more, preferably in an amount of about 0.5 weight percent or more, more preferably based on the total weight of the adhesive composition. Is used in an amount of about 0.8 weight percent or more. Such stabilizers are used in an amount of about 5.0 weight percent or less, more preferably about 2.0 weight percent or less, and most preferably about 1 weight percent, based on the weight of the adhesive composition. Used in amounts up to 4 weight percent.

  The compositions of the present invention may further comprise a fixing accelerator, such as Mahdi US Patent Application Publication No. 2002/0100550 (paragraph 0055-paragraph 0065) and Hsieh US Pat. No. 6,015,475 ( Column 5 line 27 to column 6 line 41), which are incorporated herein by reference), and the like. The amounts of such fixing accelerators that are useful are also disclosed in these references and are incorporated herein by reference.

  The composition can further include a hydrophilic material that functions to draw moisture in the air into the composition. This material increases the cure rate of the formulation by attracting moisture in the air to the composition. Preferably, the hydrophilic substance is a liquid. Preferred hydrophilic (hygroscopic) materials include pyrrolidinone compounds such as 1-methyl-2-pyrrolidinone (which is available from under the trademark M-Pyrol). The hydrophilic material is preferably present in an amount greater than about 0.1 weight percent, more preferably present in an amount greater than about 0.3 weight percent, and preferably present in an amount less than about 1.0 weight percent. And most preferably present in an amount of about 0.6 weight percent or less.

  Other ingredients commonly used in adhesive compositions can be used in the compositions of the present invention. Such materials are well known to those skilled in the art and may include UV stabilizers, antioxidants, and the like.

  The adhesive composition of the present invention can be formulated by blending the components together using means well known in the art. Generally, the components are blended and mixed in a suitable mixer. Such blend mixing is preferably performed in an inert atmosphere in the absence of oxygen and atmospheric moisture to prevent premature reaction. In embodiments where a polyester-based isocyanate functional prepolymer is used, the adhesive composition is at a temperature above the melting point of the polyester-based isocyanate functional prepolymer and below the temperature at which significant side reactions occur. Blend blended. In this embodiment, the temperature utilized is from about 40 ° C to less than about 90 ° C, more preferably from about 50 ° C to about 70 ° C. It may be advantageous to add some plasticizer to the reaction mixture for preparing the isocyanate-containing prepolymer so that such a mixture can be easily mixed and handled. Alternatively, the plasticizer can be added during the blending of all of the components. Once the adhesive composition is formulated, the adhesive composition is packaged in a suitable container so that the adhesive composition is protected from moisture and oxygen in the air. Contact with moisture and oxygen in the air can cause premature crosslinking of the isocyanate groups contained in the polyurethane prepolymer.

  The adhesive composition of the present invention is used to bond various substrates together as described hereinabove. The composition can be used to bond a porous substrate and a non-porous substrate together. An adhesive composition is applied to the substrate, after which the adhesive on the first substrate is contacted with the second substrate. In a preferred embodiment, the surface to which the adhesive is applied is cleaned and primed prior to application. See, for example, U.S. Pat. Nos. 4,525,511, 3,707,521, and 3,779,794, all of which are incorporated herein by reference. Generally, the adhesive of the present invention is applied at ambient temperature in the presence of moisture in the air. Exposure to moisture in the air is sufficient to cause the adhesive to cure. Curing can be accelerated by adding additional water or by applying heat to the adhesive during curing, such as by convection heat and microwave heating. Preferably, the adhesive of the present invention is formulated to provide a working time of about 6 minutes or more, and more preferably is formulated to provide a working time of about 10 minutes or more. Preferably, the working time is about 15 minutes or less, more preferably about 12 minutes or less.

  The adhesive composition is preferably used to bond glass or plastic coated with an abrasion resistant coating to other substrates (eg, metal or plastic). In a preferred embodiment, the first substrate is a glass or plastic coated window with a wear resistant coating and the second substrate is a window frame. In another preferred embodiment, the first substrate is a glass or plastic window coated with an abrasion-resistant coating and the second substrate is an automotive window frame. Preferably, the glass window is cleaned and has a glass primer applied to the area where the adhesive will be bonded. The plastic coated with the abrasion resistant coating may be any plastic that is transparent, for example, polycarbonate, acrylic resin, hydrogenated polystyrene, or hydrogenated styrene conjugate having a styrene content greater than 50 percent. It may be a diene block copolymer or the like. The coating can include any coating that is abrasion resistant, such as, for example, a polysiloxane coating. Preferably, the coating has a colored shading additive for ultraviolet light. Preferably, the glass or plastic window has an opaque coating placed in the area that will be contacted with the adhesive to prevent UV light from reaching the adhesive.

  In a preferred embodiment, the composition of the present invention is used to replace a window in a structure or vehicle, most preferably in a vehicle. The first step is to remove the previous window. This can be accomplished by cutting the bead of adhesive that holds the old window in place and then removing the old window. Thereafter, the new window is cleaned and primed if necessary. The old adhesive on the window flange can be removed, but it is not necessary and in most cases the old adhesive is left in place but can be cut flat with a cutting tool. The window flange is preferably primed with a paint primer. The adhesive is applied in a bead to the periphery of the window that is positioned such that the adhesive contacts the window flange when installed in the vehicle. The window with the adhesive placed on the surface is then placed in the flange with the adhesive located between the window and the flange. Alternatively, an adhesive can be applied to the window flange. The adhesive bead is a continuous bead that functions to seal the joint between the window and the window flange. A continuous bead of adhesive is a bead that is placed in contact with each end to form a continuous seal between the window and the flange when in contact. Thereafter, the adhesive can be cured. The compositions of the present invention are also useful for bonding high mass substrates up to about 120 Kg to the substrate. In one class of high mass substrates, the composition of the present invention is a large window, such as a large window utilized in a mass transit vehicle.

  In certain applications, the polymerizable compositions of the present invention can be utilized with primers or activated wipes. A primer or activated wipe is typically applied to the surface of one or more of the substrates. Any solvent can be evaporated, after which the polymerizable composition is contacted with the substrate. Preferably, the period from application of the primer or activated wipe to application of the polymerizable composition to the substrate is about 0.5 minutes or more, more preferably about 1 minute or more, most preferably about 2 More than a minute.

  In another embodiment, the composition of the present invention can be used to join modular components together. Examples of modular components include vehicle modules such as doors, windows or sunroofs.

“Viscosity”, as described herein, is disclosed in Bhat US Pat. No. 5,922,809 (column 12, lines 38-49), which is incorporated herein by reference. Is required according to the procedure “Molecular weight”, as described herein, is determined according to the method described in paragraph [0010] herein.

Exemplary Embodiments of the Invention The following examples are provided to illustrate the invention, but are not intended to limit its scope. All parts and percentages are by weight unless otherwise indicated.
component:

Prepolymer Preparation Prepolymer 1 is prepared by mixing 60.000 g of polyoxypropylene diol 1 with 15.000 g of polyoxypropylene triol 1. 10.983 g of plasticizer and 13.000 g of diphenylmethane 4,4′-diisocyanate are added. Then 0.001 g of orthoethyl acid in 0.009 g of methyl ethyl ketone and 1.000 g of diethyl malonate is added. The reaction mixture is heated to 50 ° C. in a reaction vessel and 0.007 g stannous octoate is added. The reaction is carried out at 50 ° C. for 1 hour.

  Prepolymer 2 is prepared by mixing 22.799 g of polyoxypropylene diol 2 with 33.476 g of polyoxypropylene triol 2. 34.120 g plasticizer and 9.597 g diphenylmethane 4,4'-diisocyanate are added. Then 0.001 g of orthoethyl acid in 0.009 g of methyl ethyl ketone and 1.000 g of diethyl malonate is added. The reaction mixture is heated to 50 ° C. in a reaction vessel and 0.007 g stannous octoate is added. The reaction is carried out at 50 ° C. for 1 hour.

  Prepolymer 3 was prepared by adding 60.580 g SAN (styrene acrylonitrile) grafted polyoxypropylene triol 3, 31.980 g plasticizer and 7.4100 g diphenylmethane 4,4′-diisocyanate to the reaction vessel. To do. Then 0.001 g of orthophosphoric acid in 0.009 g of methyl ethyl ketone. The reaction mixture is heated to 50 ° C. and 0.020 g of stannous octoate is added. The reaction is carried out at 50 ° C. for 1 hour.

  Polyester prepolymer 4 is prepared by adding 71.70 g polyester diol 1, 17.50 g plasticizer and 10.80 g diphenylmethane 4,4'-diisocyanate to the reaction vessel. The reaction mixture is heated to 50 ° C. in a reaction vessel and 0.007 g stannous octoate is added. The reaction is carried out at 50 ° C. for 1 hour.

Adhesive Preparation An adhesive composition is prepared by placing components 1 and 2 in a planetary mixer and degassed for 30 minutes. Thereafter, component 3 and component 4 are added in the specified amounts. Mix the mixture for 30 minutes under vacuum. Then, component 5 to component 7 are added and the mixture is mixed for 15 minutes. These ingredients, ingredient numbers and amounts are provided in the table below.

  The impact resistance test is performed with an impact pendulum tester (type 43-01) obtained from TMI at an impact speed of 4 m / s. High speed impact resistance and maximum strength are tested according to the following method. Adhesive is applied between the prongs of the sample preparation holder to overflow the tape. The specimen (76 × 25 × 5 mm) is then placed on top of the prong and the excess adhesive is slowly removed with a spatula to ensure that the bead is in perfect shape (25 × 13 × 5 mm). The test sample is then stored for the desired curing time and environmental conditions. Thereafter, the impact pendulum was lifted, the impact pendulum was latched, the test sample was fixed in place, and the hammer was released. For each test, the following are measured:

Ｘｉ＝接着剤混合物におけるすべてのプレポリマーのモル分率、ｗｉ＝接着剤混合物におけるすべてのプレポリマーの重量分率。 The components and amounts used in the tested adhesives are shown in the table below. The total weight of the ingredients shown for all examples is 100 g.

Xi = mole fraction of all prepolymers in the adhesive mixture, wi = weight fraction of all prepolymers in the adhesive mixture.

Claims (20)

a) one or more isocyanate-functional polyether-based prepolymers having an average polydispersity index of 2.5 or less as determined by GPC at a Mp of greater than 1,000; and It has a free isocyanate content of 2.2 weight percent to 1.2 weight percent based on the weight, 2 to 1.3 equivalents of isocyanate 1 equivalent of active hydrogen per isocyanate in the prepolymer (NCO) .0 one or more of a isocyanate functional polyether based prepolymers are used in the preparation in equivalent amounts;
b) less than 15 weight percent of one or more plasticizers based on the total weight of prepolymer and plasticizer ;
c) one or more catalysts for the reaction of the isocyanate component with the isocyanate-reactive group;
d) a composition comprising one or more fillers in a sufficient amount to exhibit a predetermined press flow viscosity, ie, 8 grams / minute or more,
A composition that reveals a peak strength of 1.6 MPa or more and an energy absorption of 2.5 J or more 30 minutes after application in a high speed impact test at 4 m / s according to DIN EN 1465. The composition of claim 1, wherein the one or more plasticizers are present in an amount of 6 weight percent to 13 weight percent, based on the total weight of prepolymer and plasticizer .   The composition of claim 1 or 2, wherein the filler comprises one or more carbon blacks, one or more non-colored fillers, one or more thixotropes, or combinations thereof.   4. The one or more fillers according to any one of claims 1 to 3, wherein the one or more fillers comprise non-conductive carbon black and / or conductive carbon black in an amount such that the composition is non-conductive. Composition.   The composition according to any one of claims 1 to 4, wherein the one or more conductive carbon blacks are present in an amount of 10 to 18 weight percent, based on the weight of the composition.   6. A composition according to any one of the preceding claims, wherein the one or more fillers comprise one or more clays.   The composition according to any one of the preceding claims, wherein the one or more clay fillers are present in an amount of 10 to 30 percent by weight based on the weight of the composition.   8. A composition according to any one of claims 1 to 7, wherein the one or more fillers comprise one or more carbon blacks and one or more clays.   9. The composition of claim 8, further comprising one or more isocyanate functional polyester-based prepolymer that is solid at 23 [deg.] C.   10. The one or more isocyanate functional polyester-based prepolymers are present in an amount from 1 weight percent to 4 weight percent, based on the weight of the composition. Composition.   11. A composition according to any one of the preceding claims, wherein the one or more fillers further comprise one or more non-colored fillers.   12. A composition according to any one of the preceding claims, wherein the one or more non-colored fillers are present in an amount of 3 weight percent to 15 weight percent, based on the weight of the composition.   13. A composition according to any one of the preceding claims, wherein the one or more fillers further comprise one or more thixotropes.   14. The composition according to any one of claims 1 to 13, wherein the one or more thixotropes are present in an amount of 0.1 weight percent to 3 weight percent, based on the weight of the composition.   15. A composition according to any one of claims 1 to 14, wherein the catalyst comprises one or more organometallic compounds, one or more amines, or mixtures thereof.   The composition according to any one of claims 1 to 15, further comprising a polyisocyanate. Two or more substrates to a method of joining together, the two or more substrates, in any one of claims 1 to 16, wherein the substrate is arranged along at least a portion of the area in contact Contacting with the composition described.   The method of claim 17, wherein at least one of the substrates is a glazing.   The method of claim 18, wherein at least one of the other substrates is a building or a vehicle. A method of replacing a vehicle window,
i) removing the window from the vehicle;
ii) applying the composition according to any one of claims 1 to 16 to a replacement window or to a flange of the vehicle adapted to hold the window to the vehicle;
iii) contacting the flange and the replacement window of the vehicle with the composition disposed between the replacement window and the flange of the vehicle; and iv) curing the adhesive. ,Method.